Yes. When you check in you can link your gift card to your phone number
Not sure about the gratuities being paid with gift card balances. Usually the different service areas have envelopes where cash can be left in. Or of course if you link your CC card to fees and services at entrance you can add a tip there. Not sure how that would be directed to an individual masseuse/ waitress etc.
I emailed them and was told absolutely. The only thing gift cards can't be used for is to purchase other gift cards.
I was there last year and only had a card, no cash. Wanted to put a Gratuity for the bath house attendant but they had no way to make sure it got to the right person. But I did leave a comment card about how the staff was extremely helpful, that does go a long way too. They do provide small envelopes in the bath house for gratuities, take a few at the beginning ofyour visit and add different dollar amounts and you can have them available as needed. I am planning on doing that on my visit either this week or next week.
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